/*
 * Licensed to the Apache Software Foundation (ASF) under one or more
 * contributor license agreements.  See the NOTICE file distributed with
 * this work for additional information regarding copyright ownership.
 * The ASF licenses this file to You under the Apache License, Version 2.0
 * (the "License"); you may not use this file except in compliance with
 * the License.  You may obtain a copy of the License at
 *
 *    http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 *
 */

import { BehaviorSubject } from 'rxjs';
import { SpBreadcrumbItem } from '../models/sp-navigation.model';
import { Injectable } from '@angular/core';

@Injectable({ providedIn: 'root' })
export class SpBreadcrumbService {
    currentNavHierarchy$: BehaviorSubject<SpBreadcrumbItem[]> =
        new BehaviorSubject<SpBreadcrumbItem[]>([]);

    updateBreadcrumb(breadcrumbItems: SpBreadcrumbItem[]) {
        this.currentNavHierarchy$.next(breadcrumbItems);
    }

    public getRootLink(baseRoute: SpBreadcrumbItem): SpBreadcrumbItem[] {
        return [this.removeLink({ ...baseRoute })];
    }

    public makeRoute(
        baseItems: SpBreadcrumbItem[],
        label: string,
        link?: string[],
    ) {
        baseItems.push({ label, link });
        return baseItems;
    }

    public removeLink(item: SpBreadcrumbItem): SpBreadcrumbItem {
        const newItem = { ...item };
        newItem.link = undefined;
        return newItem;
    }
}
